Leases - Supplemental Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Lessee, Lease, Description [Line Items]
Cash paid for amounts included in the measurement of operating lease liabilities	$ 31.2	$ 28.7	$ 22.9
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 16.0	$ 40.4	$ 25.9
Building and Equipment
Weighted-average remaining lease term (years):
Operating leases - building and equipment	8 years 6 months	9 years 5 months 4 days
Weighted-average discount rate:
Operating leases - vehicles	3.27%	3.51%
Vehicles
Weighted-average remaining lease term (years):
Operating leases - building and equipment	2 years 4 months 2 days	2 years 3 days
Weighted-average discount rate:
Operating leases - vehicles	1.08%	2.05%